大鼠神经血管系统的三维磁共振微血管造影术。

Three dimensional magnetic resonance microangiography of rat neurovasculature.

作者信息

Mellin A F, Cofer G P, Smith B R, Suddarth S A, Hedlund L W, Johnson G A

机构信息

Department of Radiology, Duke University Medical Center, Durham, North Carolina 27710.

出版信息

Magn Reson Med. 1994 Aug;32(2):199-205. doi: 10.1002/mrm.1910320208.

DOI:10.1002/mrm.1910320208

PMID:7968442

Abstract

Techniques are described to perform three dimensional (3D) MR microangiography. We have combined the use of a blood pool agent (Gd-DTPA-complexed with bovine serum albumin), three dimensional Fourier encoding, careful animal stabilization, and volume rendering to permit imaging with voxels of 60 x 60 x 60 microns. 3DFT encoding has been performed at 7.1 T with very large arrays (256 x 512 x 512). Interactive volume rendering allows a number of unique display opportunities that effectively exploit these isotropic 3D arrays.

摘要

本文描述了用于进行三维（3D）磁共振微血管造影的技术。我们联合使用了血池造影剂（与牛血清白蛋白络合的钆-二乙三胺五乙酸）、三维傅里叶编码、精细的动物固定以及容积再现技术，以实现60×60×60微米体素的成像。三维快速傅里叶变换（3DFT）编码在7.1特斯拉磁场下，使用非常大的阵列（256×512×512）进行。交互式容积再现提供了许多独特的显示机会，能有效利用这些各向同性的3D阵列。